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Bmw 128i P0743 Engine Error Code

When you check Bmw 128i car engine light came on code P0743 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Bmw manufacturer may have a different definition for the P0743 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0743 Bmw 128i Code Clear

Do you have fresh, clean fuel in the tank? If it's empty, fill it up and go! If it's full, check P0743 Bmw 128i that the fuel shut-off valve is open and that it is clean. Stale fuel, dirt and debris are the most common cause of outdoor power equipment not starting properly. If you store equipment with untreated gas in the tank, it can lead to engine damage.

P0743 Code Reason

Bmw 128i P0743 OBD-II Diagnostic Powertrain (P) Trouble Code Description

Bmw 128i car P0743 OBD-II Trouble Code The Torque Converter Clutch (TCC) solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control M

Reason For Bmw 128i P0743 Code

The reason of Bmw 128i P0743 OBD-II Engine Error Code is P0743 Torque Converter Clutch Circuit Electrical.

If your vehicle failed a P0743 Bmw 128i test and the Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look P0743 Bmw 128i: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

Bmw 128i P0743 Possible Solution :

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

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